... outdoor power supply fields,such as residential zone,factory and mining,hospital,hotel,oil field,airport,wharf,railway, ... less maintenance,a complete protection capacities against error operation and its overload capacity could reach up to 120%. ... plate,compound plate,etc.It is beautiful with various types and sizes.Technical dataMain transformer capacity30-1250KVAHigh voltage 10KVLow voltage0.4KVHV ...